Abstract
E-mail address: b.aksakal@firat.edu.tr In vitro osteosynthesis of transverse and oblique (45°) bone fracture fixations have been biomechanically tested on fresh sheep tibias using the standard and helical compression plates. Torsion, bending and compression tests were conducted experimentally. The biomechanical characteristics of standard and helical plates in fixation of spiral and oblique fractures were compared to each other. Statistically significant differences between the transverse and oblique fractures have been detected in both, standard and helical, plate fixations during axial compression, bending and torsion tests. In comparison of both helical and standard plate fixations for both fracture types under axial compression was slightly in favor of helical plates, but, was not statistically significant. However, overall the biomechanical strength of helical plate fixation for transverse fractures was found to be higher than oblique fractures. Compared to conventional plating, the helical plate fixations provided maximum torsional resistance than straight plate fixations.
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